EP1072259A3 - Microcapsule and method of making the same - Google Patents

Microcapsule and method of making the same Download PDF

Info

Publication number
EP1072259A3
EP1072259A3 EP00115072A EP00115072A EP1072259A3 EP 1072259 A3 EP1072259 A3 EP 1072259A3 EP 00115072 A EP00115072 A EP 00115072A EP 00115072 A EP00115072 A EP 00115072A EP 1072259 A3 EP1072259 A3 EP 1072259A3
Authority
EP
European Patent Office
Prior art keywords
microcapsule
agent
particle size
hydrophilic polymer
oil droplets
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00115072A
Other languages
German (de)
French (fr)
Other versions
EP1072259B1 (en
EP1072259A2 (en
Inventor
Kazuyuki Shiseido Research Center Miyazawa
Isamu Shiseido Research Center Kaneda
Toshio Shiseido Research Center Yanaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shiseido Co Ltd
Original Assignee
Shiseido Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2000089743A external-priority patent/JP4637992B2/en
Priority claimed from JP2000089745A external-priority patent/JP2001278740A/en
Priority claimed from JP2000089742A external-priority patent/JP4637991B2/en
Priority claimed from JP2000089744A external-priority patent/JP4637993B2/en
Application filed by Shiseido Co Ltd filed Critical Shiseido Co Ltd
Publication of EP1072259A2 publication Critical patent/EP1072259A2/en
Publication of EP1072259A3 publication Critical patent/EP1072259A3/en
Application granted granted Critical
Publication of EP1072259B1 publication Critical patent/EP1072259B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0208—Tissues; Wipes; Patches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/11—Encapsulated compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/28—Rubbing or scrubbing compositions; Peeling or abrasive compositions; Containing exfoliants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
    • A61Q1/06—Lipsticks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A61Q1/08—Preparations containing skin colorants, e.g. pigments for cheeks, e.g. rouge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants

Abstract

A microcapsule of the present invention is characterized in that it encapsulate oil droplets having average particle size of 0.01 to 3 µm and its capsulating agent is a hydrophilic polymer gelling agent. The main component of the capsulating agent is preferably a hydrophilic polymer gelling agent which hardens by heating and cooling, and, in particular, agar or carrageenan. In the making method of the present invention, a microcapsule can be made efficiently due to no loss in the inner oil phase, and its particle size can easily be controlled. The microcapsule is excellent in shearing-resistance, store stability. Also, if the fracture strength of the microcapsule is within a specific range, a microcapsule which releasing characteristic of encapsulated oil droplets when applied is immediately-, gradually- or non-releasing can be obtained. Further, when such a hydrophilic microcapsule is coated, the contraction in air, dispersibility to various medium, and elusion of encapsulated components in medium can be also improved.
EP00115072A 1999-07-27 2000-07-27 Microcapsule and method of making the same Expired - Lifetime EP1072259B1 (en)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
JP21237399 1999-07-27
JP21237399 1999-07-27
JP2000089742 2000-03-28
JP2000089743A JP4637992B2 (en) 1999-07-27 2000-03-28 Microcapsule and manufacturing method thereof
JP2000089743 2000-03-28
JP2000089745A JP2001278740A (en) 2000-03-28 2000-03-28 Coated microcapsule
JP2000089742A JP4637991B2 (en) 1999-07-27 2000-03-28 Microcapsule and manufacturing method thereof
JP2000089744A JP4637993B2 (en) 1999-07-27 2000-03-28 Microcapsule and manufacturing method thereof
JP2000089745 2000-03-28
JP2000089744 2000-03-28

Publications (3)

Publication Number Publication Date
EP1072259A2 EP1072259A2 (en) 2001-01-31
EP1072259A3 true EP1072259A3 (en) 2002-03-20
EP1072259B1 EP1072259B1 (en) 2006-06-07

Family

ID=27529531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115072A Expired - Lifetime EP1072259B1 (en) 1999-07-27 2000-07-27 Microcapsule and method of making the same

Country Status (6)

Country Link
US (1) US6391288B1 (en)
EP (1) EP1072259B1 (en)
KR (1) KR100541753B1 (en)
CN (1) CN1238106C (en)
DE (1) DE60028468T2 (en)
TW (1) TWI240640B (en)

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EP1072259B1 (en) 2006-06-07
EP1072259A2 (en) 2001-01-31
DE60028468T2 (en) 2006-12-14
KR100541753B1 (en) 2006-01-10
CN1287877A (en) 2001-03-21
CN1238106C (en) 2006-01-25
US6391288B1 (en) 2002-05-21
TWI240640B (en) 2005-10-01
KR20010049883A (en) 2001-06-15

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